libraries/file_listing.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Functions for listing directories
   5  *
   6  * @todo rename to file_listing.lib.php
   7  * @package PhpMyAdmin
   8  */
   9
  10 /**
  11  * Returns array of filtered file names
  12  *
  13  * @param string $dir        directory to list
  14  * @param string $expression regular expression to match files
  15  * @return array   sorted file list on success, false on failure
  16  */
  17 function PMA_getDirContent($dir, $expression = '')
  18 {
  19     if (file_exists($dir) && $handle = @opendir($dir)) {
  20         $result = array();
  21         if (substr($dir, -1) != '/') {
  22             $dir .= '/';
  23         }
  24         while ($file = @readdir($handle)) {
  25         // for PHP < 5.2.4, is_file() gives a warning when using open_basedir
  26         // and verifying '..' or '.'
  27             if ('.' != $file && '..' != $file && is_file($dir . $file) && ($expression == '' || preg_match($expression, $file))) {
  28                 $result[] = $file;
  29             }
  30         }
  31         @closedir($handle);
  32         asort($result);
  33         return $result;
  34     } else {
  35         return false;
  36     }
  37 }
  38
  39 /**
  40  * Returns options of filtered file names
  41  *
  42  * @param string $dir        directory to list
  43  * @param string $extensions regullar expression to match files
  44  * @param string $active     currently active choice
  45  * @return array   sorted file list on success, false on failure
  46  */
  47 function PMA_getFileSelectOptions($dir, $extensions = '', $active = '')
  48 {
  49     $list = PMA_getDirContent($dir, $extensions);
  50     if ($list === false) {
  51         return false;
  52     }
  53     $result = '';
  54     foreach ($list as $key => $val) {
  55         $result .= '<option value="'. htmlspecialchars($val) . '"';
  56         if ($val == $active) {
  57             $result .= ' selected="selected"';
  58         }
  59         $result .= '>' . htmlspecialchars($val) . '</option>' . "\n";
  60     }
  61     return $result;
  62 }
  63
  64 /**
  65  * Get currently supported decompressions.
  66  *
  67  * @return string | separated list of extensions usable in PMA_getDirContent
  68  */
  69 function PMA_supportedDecompressions()
  70 {
  71     global $cfg;
  72
  73     $compressions = '';
  74
  75     if ($cfg['GZipDump'] && @function_exists('gzopen')) {
  76         if (!empty($compressions)) {
  77             $compressions .= '|';
  78         }
  79         $compressions .= 'gz';
  80     }
  81     if ($cfg['BZipDump'] && @function_exists('bzopen')) {
  82         if (!empty($compressions)) {
  83             $compressions .= '|';
  84         }
  85         $compressions .= 'bz2';
  86     }
  87     if ($cfg['ZipDump'] && @function_exists('gzinflate')) {
  88         if (!empty($compressions)) {
  89             $compressions .= '|';
  90         }
  91         $compressions .= 'zip';
  92     }
  93
  94     return $compressions;
  95 }